Agreement

Chicago teachers union members, with president Karen Lewis, gather at the International Union of Operating Engineers union hall to announce a tentative agreement on a new contract.

Chicago teachers union members, with president Karen Lewis, gather at the International Union of Operating Engineers union hall to announce a tentative agreement on a new contract. (E. Jason Wambsgans, Chicago Tribune)

Chicago teachers union members, with president Karen Lewis, gather at the International Union of Operating Engineers union hall to announce a tentative agreement on a new contract.